Software For Those On A Mission. See How We Help Power Real Change.

A suite of powerful, intuitive tools that help drive winning grassroots advocacy campaigns.

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Muster powers the digital grassroots advocacy for nonprofits, associations, and chambers across America.

Advocacy Communications

We match your supporters with legislators, enabling them to send prefilled or customized emails, phone calls, tweets, and more.

Committee Targeting

Don't let legislation get stuck in committee. Allow your advocates to have their voices heard by committee members.

Analytics & Reporting

See how effective your government affairs and membership is with engagement analytics. Uncover new advocates and grow your organization

Text To Act

Drive supporter engagement via text message. Power your advocacy, donations, sign-ups, and more with text capabilities.


Lightweight, efficient contact management and segmentation. Organize contacts by district and custom fields as you see fit.

Responsive Widgets

Embed them on your landing pages and allow your advocates to take action from anywhere. No excessive branding. Just pure advocacy.

Build Better Advocacy Landing Pages

Muster Action Form

Generate a form for every advocacy campaign. Make it effortless for supporters to take action from your landing pages. Responsive design. No over-the-top branding. Just pure advocacy for your organization. 


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See how Muster can power your grassroots engagement.

In less than 30 minutes we can show you how Muster can help your organization shape public policy.